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By proper application of heat and pressure to a cement paste having a very low water/cement ratio W/C, a hard, strong, dense cylindrical specimen is formed in a very short time. Specimen preparation is simple and only a few grams of cement are required. Compression and splitting (modified tension) tests can be performed and the soundness of the cement can be predicted. Temperature, pressure, time, W/C, sample size, and cement fineness are the parameters that affect the degree of strength. With standardization of the hot-pressing parameters, the physical properties of the cement paste can be obtained quickly instead of after the usual waiting period of from one to four weeks.
Professor of materials science, Materials Research Laboratory, The Pennsylvania State University, University Park, Pa.
Manager, Cement Technology, Fuller Company, Bethlehem, Pa.
Stock #: CCA10186J